Depends on so many things, first thing shooters are diffrent, what one thinks is an unbearable recoil the next one dosnt mind.
the recoil depends alot on the rifle weight and how well a rifle fits the shooter.

Shot a CZ in 416rigby recently and the recoil was more of a hefty push than a big thump and the big Rigby is quite bigger than 375H&H..
On the other hand the only rifle ive given up on is a Tikka T3 lite in 300 win mag,
That little thing kicked like a branded mule....

A 375H&H that fits you well and is not some ultra light rifle wont kick that bad

My Dentest has one that belonged to his Father and he has no intentions of ever using it.
its been in Africa many times..I have a Browning A5 that kicks so bad I get floaters in my eyes.
I hate it! it was pulled out of the box fired and cleaned well and put up it is one made in Belgium
and has never been used from then on its about 30 years old my Dad bought it from a drunk
for $300.00 He bought it and never hunted. the stock has not one scratch its in A+ condition.
I have been told the 375H&H is one hellova Moose/Elk/ Bear killer. its a Remington the bluing is a bit washed stock is scratched its been hunted with and it has many seasons left and he has made me an offer to trade up.???????

I can shoot my .338 Win Mag and my 7mm RUM all afternoon and have a great time. I've shot several 375 H&H Magnums and they just flat give me a headache and make my eyes hurt. They are very popular here in Alaska but the first thing I'd do is have a good break put on it.

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Someday someone may kill you with your own gun, but they should have to beat you to death with it because it is empty.

I have a .375 H&H that I built. Will have to weigh it as it is a little heavier than the average rifle. Built as an African Dangerous Game rifle. Shooting the 300 gn loads, the thing seems to give a good push instead of the sharp recoil of say a .300WM. 270 loads would probably be a little lighter. I have a .358 Win. in a mdl 88 that kicks harder.